Natural0023 Dark Yellow

Natural0023 Dark Yellow

Raw materials：Giant Knotweed Rhizome

   Giant knotweed, belonging to polygonaceae, is a perennial herb. Its rhizome is sturdy, woody, yellowish brown, lying on the ground, with obvious nodes. It mainly originates in Shaanxi, Gansu, East China, Central China, South China, Sichuan, etc.; it is also distributed in Korea and Japan. It grows in hillside shrub, valley, roadside and farmland wetland. The rhizome is used for medicine with functions of promoting blood circulation, dispersing blood stasis, dredging meridians, relieving cough, etc.

Plant Area & Production Base: 

    Shanxi

Dye Production Process: 

    Harvest→Screening→Raw Material→Extraction→Concentration→Purification→Drying→Grinding →Packing